Evaluation The Water Quality of Al- Rusafa Treatment Plant in Baghdad City / Al-Rusafa Side Using Several Water Quality Indices

The present study was conducted drinking water treatment plant located in districts which is (Al-Rusafa) in Baghdad city. The study aims to assess the water quality produced from the above plant using various water quality indices. Twelve physical and chemical parameters have been tested which are pH, turbidity, electrical conductivity, calcium, magnesium, chloride, total hardness, alkalinity, sulfate, sodium and total dissolved solids. Five different approaches and methodologies of water quality indices were applied to get the level of pollution during a period of nine months, starting from November 2021 until July 2022.The values WAV WQI for water treatment pant indicate that the water quality was good. Also, the results of the MNE WQI showed that water treatment plant produced clean water, but Al-Rusafa treatment plant in April, the water was very clean. The values of (weighted method) indicated that the water quality for water treatment plant was good. It was found that water treatment plant studied gives excellent quality using based on values of CCME and BCWQI indices. It is found that the values of all chemical and physical parameters are within Iraqi standards. Finally, in the present study, many statistical equation were found for the purpose of calculating the water quality index for water treatment plant studied with a proper coefficient of determinations.